NOAEL Data Cosmetic Ingredient

Methoxy polyethylene glycol 550

Also known as: Poly(oxy-​1,​2-​ethanediyl)​, α-​methyl-​ω-​hydroxy- Polymer, Glycols, polyethylene, monomethyl ether, Ethylene oxide-methanol adduct, Carbowax 2000, Aduxol MPEG 550 (+15 more)

CAS 9004-74-4

Methoxy polyethylene glycol 550 (CAS 9004-74-4) is a chemical substance. Key regulatory status: 2 regulatory/inventory lists, cosmetic ingredient cross-reference; source data from EPA ToxValDB, EPA CPDat, AICIS.

View cosmetic safety profile for PEG-7 Methyl Ether →

SOURCE noael studies public
NOAEL studies
44
SOURCE chemical inventory jurisdictions
Regulatory lists
2
SOURCE eu clp annex vi
GHS signal
Not classified

Chemical Identity

CAS, identifiers, formula, and alternate names for the matched substance record.

SOURCE DSSTox identifiers 23 fields
Name
Methoxy polyethylene glycol 550
CAS Number
9004-74-4
DTXSID
DTXSID10872619
Synonyms
Poly(oxy-​1,​2-​ethanediyl)​, α-​methyl-​ω-​hydroxy- PolymerGlycols, polyethylene, monomethyl etherEthylene oxide-methanol adductCarbowax 2000Aduxol MPEG 5502,5,8,11,14,17,20,23,26,29,32,35-Dodecaoxaheptatriacontan-37-ol2,5,8,11,14,17,20,23,26,29,32,35,38,41,44,47,50-Heptadecaoxadopentacontan-52-olMonomethoxypolyethylene glycolMonomethoxy poly(ethylene oxide)Methoxypoly(ethylene glycol)Methoxypolyethylene glycolMethyl polyglycol

Functional Uses

Industrial and product-use categories associated with this substance.

SOURCE EPA CPDat 31 records
SolventHumectantDispersing agentFilm former

Regulatory Lists

Inventory, screening, and regulatory list matches from public chemical databases.

SOURCE EPA CPDat 2 records
ListKeywordSource
inert_ingredient; non_food_use; PesticidesEPACPCat
SCIL (9/2019)USEPASafer Chemical Ingredients List

NOAEL Studies

Toxicology endpoints rendered from public NOAEL study rows.

SOURCE NOAEL studies Showing 44 of 44 studies
ValueUnitEndpointRouteSpeciesSource
3S6PWQ487VUNIIFDA UNII substance identifier--openFDA substances
3S6PWQ487VUNIIFDA UNII substance identifier--openFDA substances
3S6PWQ487VUNIIFDA UNII substance identifier--openFDA substances
3S6PWQ487VUNIIFDA UNII substance identifier--openFDA substances
6AXS45P1QUUNIIFDA UNII substance identifier--openFDA substances
6AXS45P1QUUNIIFDA UNII substance identifier--openFDA substances
6AXS45P1QUUNIIFDA UNII substance identifier--openFDA substances
6AXS45P1QUUNIIFDA UNII substance identifier--openFDA substances
77U9H6E11KUNIIFDA UNII substance identifier--openFDA substances
77U9H6E11KUNIIFDA UNII substance identifier--openFDA substances
77U9H6E11KUNIIFDA UNII substance identifier--openFDA substances
77U9H6E11KUNIIFDA UNII substance identifier--openFDA substances
89ES36762BUNIIFDA UNII substance identifier--openFDA substances
89ES36762BUNIIFDA UNII substance identifier--openFDA substances
89ES36762BUNIIFDA UNII substance identifier--openFDA substances
89ES36762BUNIIFDA UNII substance identifier--openFDA substances
DN0P4Q4I16UNIIFDA UNII substance identifier--openFDA substances
DN0P4Q4I16UNIIFDA UNII substance identifier--openFDA substances
DN0P4Q4I16UNIIFDA UNII substance identifier--openFDA substances
DN0P4Q4I16UNIIFDA UNII substance identifier--openFDA substances
ENK4Y6S66XUNIIFDA UNII substance identifier--openFDA substances
ENK4Y6S66XUNIIFDA UNII substance identifier--openFDA substances
ENK4Y6S66XUNIIFDA UNII substance identifier--openFDA substances
ENK4Y6S66XUNIIFDA UNII substance identifier--openFDA substances
H0S96329MOUNIIFDA UNII substance identifier--openFDA substances
H0S96329MOUNIIFDA UNII substance identifier--openFDA substances
H0S96329MOUNIIFDA UNII substance identifier--openFDA substances
H0S96329MOUNIIFDA UNII substance identifier--openFDA substances
P3R1BUP13IUNIIFDA UNII substance identifier--openFDA substances
P3R1BUP13IUNIIFDA UNII substance identifier--openFDA substances
P3R1BUP13IUNIIFDA UNII substance identifier--openFDA substances
P3R1BUP13IUNIIFDA UNII substance identifier--openFDA substances
SUM33ZW82JUNIIFDA UNII substance identifier--openFDA substances
SUM33ZW82JUNIIFDA UNII substance identifier--openFDA substances
SUM33ZW82JUNIIFDA UNII substance identifier--openFDA substances
SUM33ZW82JUNIIFDA UNII substance identifier--openFDA substances
UQE3488NAIUNIIFDA UNII substance identifier--openFDA substances
UQE3488NAIUNIIFDA UNII substance identifier--openFDA substances
UQE3488NAIUNIIFDA UNII substance identifier--openFDA substances
UQE3488NAIUNIIFDA UNII substance identifier--openFDA substances
WXH089JZ5EUNIIFDA UNII substance identifier--openFDA substances
WXH089JZ5EUNIIFDA UNII substance identifier--openFDA substances
WXH089JZ5EUNIIFDA UNII substance identifier--openFDA substances
WXH089JZ5EUNIIFDA UNII substance identifier--openFDA substances

Showing 44 of 44 studies

Australian Status (AICIS)

Australian industrial chemicals inventory status and applicable conditions.

SOURCE AICIS inventory 1 records
Inventory Status
listed

Cosmetic Safety Profile

Same-CAS cosmetic ingredient record for cross-vertical context.

SOURCE CosIng / Ingredients DB
EU Status
permitted
Max
-
Category
Emulsifiers
View full cosmetic safety profile →

Frequently Asked Questions

What is the NOAEL for Methoxy polyethylene glycol 550?

Methoxy polyethylene glycol 550 has 44 NOAEL studies in the database. The lowest reported value is 3S6PWQ487V UNII. Source: openFDA substances.

What regulatory lists include Methoxy polyethylene glycol 550?

Methoxy polyethylene glycol 550 appears on 2 regulatory/inventory lists including inert_ingredient; non_food_use; Pesticides, SCIL (9/2019). Source: EPA CPDat.

Is Methoxy polyethylene glycol 550 used in cosmetics?

Yes, Methoxy polyethylene glycol 550 is also indexed as a cosmetic ingredient under the name PEG-7 Methyl Ether. View the full cosmetic safety profile on the ingredient page for detailed safety data, SCCS opinions, and regulatory status.

Where does the safety data for Methoxy polyethylene glycol 550 come from?

Safety data is sourced from EPA ToxValDB, EPA CPDat, AICIS (Australian Industrial Chemicals Introduction Scheme), EPA DSSTox, CosIng / Ingredients DB. All data traces to primary regulatory sources and is updated from official government databases.

Is Methoxy polyethylene glycol 550 used outside industrial chemicals?

Methoxy polyethylene glycol 550 also appears in cosmetics databases.